Advertisement

Journal of Thermal Science

, Volume 19, Issue 6, pp 533–539 | Cite as

Numerical simulation of duct flow with fog droplets

  • Abhilash Suryan
  • J. K. Lee
  • D. S. Kim
  • H. D. Kim
Article

Abstract

Evaporative cooling is a widely used air cooling technique. In this method, evaporation of a liquid in the surrounding air cools the air in contact with it. In the current investigation, numerical simulations are carried out to visualize the evaporation and dynamics of tiny water droplets of different diameters in a long air duct. The effect of initial droplet size on the temperature and relative humidity distribution of the air stream in the duct is investigated. Three different initial conditions of air are considered to verify the influence of ambient conditions. Droplet spray patterns are also analyzed to identify the suitable locations for the spray nozzles within the duct. The results obtained are displayed in a series of plots to provide a clear understanding of the evaporative cooling process as well as the droplet dynamics within the ducts.

Keywords

Evaporative cooling Fog droplet Two-phase flow Relative humidity 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Suryan, A, Kim, D. S., Lee, H. D., Kwon, J. K. and Kim, H. D.: Analytical Study on Evaporative Cooling Potential and Power Gains of Air Compressors by Inlet Fogging, Proceedings of KSME Conference, pp.2637–2641, Pyeongchang, Korea, November (2008).Google Scholar
  2. [2]
    FLUENT, Users Guide, FLUENT Inc., Lebanon, USA (2003).Google Scholar
  3. [3]
    Wilcox, D. C.: Turbulence Modeling for CFD, 2nd ed., DCW Industries, Inc., California, USA (1998).Google Scholar
  4. [4]
    Launder, B. E. and Spalding, D. B.: Lectures in Mathematical Modeling of Turbulence, Academic Press, London, UK (1972).Google Scholar
  5. [5]
    Launder, B. E. and Spalding, D. B.: The Numerical Computation of Turbulent Flows, Computer Methods in Applied Mechanics and Engineering, Elsevier, Lausanne, Switzerland, Vol. 3, pp269–289 (1974).zbMATHCrossRefGoogle Scholar
  6. [6]
    Parsons, R.: ASHRAE Hand Book-Fundamentals, Chapter 6, Psychrometrics, ASHRAE Edition, Atlanta, Georgia, USA (2001)Google Scholar

Copyright information

© Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Abhilash Suryan
    • 1
  • J. K. Lee
    • 1
  • D. S. Kim
    • 2
  • H. D. Kim
    • 1
  1. 1.Department of Mechanical EngineeringAndong National UniversityAndongKorea
  2. 2.FMTRC, Daejoo Machinery Co.DaeguKorea

Personalised recommendations